I have a quick question about what I need to do in order to have my system set up properly. First, I have an Airport extreme that is probably 2-3 years old. I have a 1TB USB drive used for time machine for an iMac and a MBP. I also have a 2 TB buffalo NAS attached to the AE. All of these items are in my office and my house does NOT have wiring for networking. In my media room I have my Xbox, bluray, ATV2, directv, etc. I would like to hook these up via Ethernet. Mainly because the directv has to be hooked up via Ethernet (long story). So I figured if I have to do one, why not do them all. Could I take a new airport express and connect it to my current wifi and use the Ethernet port to connect the directv, or any device for that matter, to the wifi? Or would it make more sense to get a TC to replace my Extreme and use the Extreme in the place of the express in the example? I'm more curious if it would work, more than what equipment to use, but any recommendations would be appreciated.